/*
 * Copyright 2009-2017 Alibaba Cloud All rights reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <alibabacloud/oss/auth/CredentialsProvider.h>

using namespace AlibabaCloud::OSS;

CredentialsProvider::~CredentialsProvider()
{
}

Credentials EnvironmentVariableCredentialsProvider::getCredentials()
{
    auto value = std::getenv("OSS_ACCESS_KEY_ID");
    Credentials credentials("", "");

    if (value)
    {
        credentials.setAccessKeyId(value);

        value = std::getenv("OSS_ACCESS_KEY_SECRET");

        if (value)
        {
            credentials.setAccessKeySecret(value);
        }

        value = std::getenv("OSS_SESSION_TOKEN");

        if (value)
        {
            credentials.setSessionToken(value);
        }
    }

    return credentials;
}

